1217223 has 18 divisors (see below), whose sum is σ = 2023944. Its totient is φ = 690552.

The previous prime is 1217219. The next prime is 1217233. The reversal of 1217223 is 3227121.

It is not a de Polignac number, because 1217223 - 2² = 1217219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1217196 and 1217205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217213) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8688 + ... + 8826.

2^1217223 is an apocalyptic number.

1217223 is a deficient number, since it is larger than the sum of its proper divisors (806721).

1217223 is an equidigital number, since it uses as much as digits as its factorization.

1217223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 149 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 1217223 is about 1103.2782967139. The cubic root of 1217223 is about 106.7718374593.

The spelling of 1217223 in words is "one million, two hundred seventeen thousand, two hundred twenty-three".